• 제목/요약/키워드: Cronbach's Alpha value

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Validity & Reliability Test of a Life Respect Instrument for Korean Elementary School Students (초등학생 대상 생명존중 인식 측정도구의 타당도 및 신뢰도 검증)

  • Kang, Kyung-Ah;Kim, Shin-Jeong;Song, Mi-Kyung;An, Jin-Young
    • The Journal of Korean Academic Society of Nursing Education
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    • v.17 no.1
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    • pp.120-128
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    • 2011
  • Purpose: The purpose of this study was to test the validity and reliability of a life respect instrument for elementary school students. Method: The study was conducted as follows: identification of the tentative content domains, items generation, test of content validity, and data collecting with a preliminary questionnaire. Descriptive statistics, factor analysis, Cronbach's alpha, Guttman split-half, and Pearson correlation coefficients were used to analyze the data. Results: Two factors were extracted through factor analysis: 'Value about life respect', and 'Attitude about life respect.' These factors explained 58.82% of all factors. A total of 16 items belonging to 2 domains were generated. Cronbach's alpha and Guttman split-half coefficient were .82, and .84 respectively. Conclusion: The life respect instrument modified in this study will be useful for evaluating the effect of life respect education for elementary school students.

Reliability and Validity of Korean Version Northwick Park Neck Pain Questionnaire in Neck Pain Patients (경통 환자들을 위한 한국어판 Northwick Park Neck Pain Questionnaire의 신뢰도와 타당도)

  • Lee, Kwan-Woo;Seo, Hyun-Do;Jung, Kyoung-Sim;Kim, Sang-Hwun;Chung, Yi-Jung
    • Physical Therapy Korea
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    • v.17 no.3
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    • pp.68-76
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    • 2010
  • The purpose of this study was to establish reliability and validity of the Northwick Park Neck Pain Questionnaire (NPQ) translated into Korean for neck pain patients. Sixty-two subjects (35 males, 27 females) with neck pain enrolled in the study. They completed a standardized self-administered questionnaire that included pain intensity, sleeping, sensory at night, duration of symptoms, carrying, reading and watching television, working, social activities, and driving. Reliability was determined by intraclass correlation coefficient (ICC) and Cronbach's alpha by internal consistency. Validity was examined by correlating the NPQ scores to the Visual Analog Scale (VAS) score. Test-retest reliability of the translated versions of the NPQ was good ICC(2,1)=.83 (95%CI=.85~.95). Cronbach's alpha value for NPQ was found to be .87 and this was statistically significant (p<.05). The criterion-related validity coefficients was .75 (p<.01). We concluded that the Korean version NPQ was shown to be a reliable and valid instrument for the assessment of neck pain.

Reliability and Validity of the Neck Disability Index in Neck Pain Patients (경통 환자 평가를 위한 Neck Disability Index의 신뢰도와 타당도)

  • Lee, Eun-Woo;Shin, Won-Seob;Jung, Kyoung-Sim;Chung, Yi-Jung
    • Physical Therapy Korea
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    • v.14 no.3
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    • pp.97-106
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    • 2007
  • The purpose of this study was to determine reliability and validity of the Neck Disability Index (NDI) now in use for the first time in neck pain patients of Korea. Fifty subjects (26 males and24 female) with neck pain enrolled in the study. They completed a standardized self-administered questionnaire that include pain intensity, personal care, lifting, reading, headaches, concentration, work, driving, sleeping and recreation. Reliability was determined by intra-class correlation coefficient (ICC) and Cronbach's alpha by internal consistency. Validity was examined by correlating the NDI scores to the Visual Analog Scale (VAS) score. The Test-retest reliability of the translated versions of the NDI was good ICC (2,1) = .90 (95%CI .85 .95). Cronbach's alpha value for NDI was found to be .95 and this was statistically significant (p<.05). The criterion-related validity coefficients was .72 (p<.01). We conclude that the Korean version of NDI has shown to be a reliable and valid instrument for the assessment of neck pain.

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Validity of the Self-efficacy for Interprofessional Experimental Learning Scale in Korea (한국판 전문직 간 학습에 대한 자기 효능감 척도의 타당화)

  • Kwon, Oh Young;Park, Kyung Hye;Park, Kwi Hwa;Kang, Youngjoon
    • Korean Medical Education Review
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    • v.21 no.3
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    • pp.155-161
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    • 2019
  • Interprofessional education (IPE) can promote high-quality patient care and good medical outcomes through teamwork among health professionals. However, there are no valid measurements to prove the effectiveness of IPE in Korea. This study aimed to develop and test a Korean version of the Self-efficacy for Interprofessional Experimental Learning Scale (SEIEL). The original SEIEL was translated into Korean by two experienced medical professors, and 368 questionnaires were collected from medical and nursing students (third and fourth year). To analyze the validity of the Korean version of the SEIEL, an exploratory and confirmatory factor analysis was conducted. Cronbach's ${\alpha}$ was used to evaluate reliability. Results from the exploratory factor analysis identified two functions: "interprofessional collaboration" and "interprofessional team evaluation." A significant cross-correlation was found between the two functions (r=0.690, p<0.001), with a Cronbach's ${\alpha}$ value of 0.932. The reliability and validity of the Korean version of the SEIEL was identified in this study. This tool can be helpful in measuring the effectiveness of IPE in Korea.

Image and Altitude on the Alpha-Numeric Brand Name of Fashion Products (패션제품의 숫자 결합 상표명에 대한 이미지와 태도에 관한 연구)

  • Park Hye-Won;Ryou Eun-Jeong
    • The Research Journal of the Costume Culture
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    • v.13 no.3 s.56
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    • pp.494-502
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    • 2005
  • The purposes of this study were to investigate the images on the alpha numeric brand name of fashion products, to identify the influences of clothing pursuit benefit on the brand name image and to determine the significant images on the attitude and purchasing intention. The data were collected via a self-administered questionnaire from 270 male and female students of undergraduate school in Kyongnam province during the March, 2004. Using SPSS 12.0 package, Cronbach's a, frequency analysis, factor analysis, and multiple regression analysis were performed. The results could be summarized as follows: First, the image dimensions of alpha-numeric brand name were composed of natural, new, active, urban, impactive and interesting image. Clothing pursuit benefits were composed of the brand value, attractiveness, fashion, individuality and economic value pursuit, Second, Clothing pursuit benefits had an significant effect on the image preference of alpha-numeric brand name. Especially, individuality pursuit and attractiveness pursuit have influenced on the natural, new, active, urban images. Third, the new, active, impactive, natural images had significant effects on the attitude, purchasing intention and conformity of products.

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Impacts of Service Quality and Shopping Value on Consumers' Satisfaction for Women in their 50's and 60's (서비스품질과 쇼핑가치가 소비자 만족 및 재구매의도에 미치는 영향 - 50, 60대 여성 소비자를 중심으로 -)

  • Park, Eun Joo;Kang, Eun Mi
    • Journal of the Korean Home Economics Association
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    • v.43 no.10 s.212
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    • pp.115-124
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    • 2005
  • The purposes of this study were, 1) to examine the conceptual structure of shopping value and service quality as perceived by women in their 50's and 60's, and 2) to investigate the effects of shopping value and service quality on consumer satisfaction of these women. The results mal provide insights related to the silver market in South Korea. Data were obtained for 286 women in their 50's and 60's living in metropolitan areas in South Korea, and analyzed using factor analysis, Cronbach's alpha, and regression. The results showed that service quality was composed of Facilities Service, Product Service, Salespersons' Service and Policy Service. Shopping values perceived by elderly consumers consisted of two factors: Hedonic Shopping Value, and Utility Shopping Value. Elderly consumers perceived Hedonic Value by Salespersons' Service and Utility Value by Policy Service. Salespersons' Service of a store was the most important variable for elderly consumers' satisfaction. The finding suggest that a store's Salespersons' Service is important in predicting elderlv corlsumers' purchase behavior, and they give insight into the development of strategies to be utilized in promotion planning. Implications and drawn for the information useful to consumer behavior researchers and retailers of the silver market.

A Study on the Reliability and Validity of the Five-Visceral Weak Children Questionnaire for Children with Anorexia (식욕부진 소아 대상 오장허약아 설문지의 신뢰도 및 타당도 연구)

  • Ko Mi Mi;Lee Sun Haeng;Chang Gyu Tae;Lee Boram
    • The Journal of Pediatrics of Korean Medicine
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    • v.38 no.2
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    • pp.1-10
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    • 2024
  • Objectives This study aimed to assess the reliability and validity of the Five-Visceral Weak Children Questionnaire (FWCQ) in childhood anorexia and to propose optimal cutoff values. Methods We conducted two surveys, spaced one month apart, targeting the parents of 366 children aged 2-9 years who had been diagnosed with anorexia for at least one month. To evaluate the reliability of the FWCQ, we calculated Cronbach's alpha coefficient and employed the test-retest method. Additionally, correlation analysis was performed between the FWCQ and each visceral question, and discriminant validity was assessed by comparing responses from the anorexic and normal groups. Furthermore, we determined the cutoff value of the spleen weak score, which is closely associated with appetite, for the anorexic group. Results The first survey yielded responses from 336 participants, followed by 171 responses in the second survey conducted one month later. The FWCQ demonstrated high internal consistency (Cronbach's alpha = 0.776), and test-retest results were consistent. The correlation coefficients between the FWCQ and each visceral question were all statistically significant. Moreover, significant discriminant validity was observed between the anorexic and normal groups in the FWCQ score and the heart, spleen, and kidney weak scores. The optimal cutoff value for the spleen weak score in the anorexic group was found to be 5.5 points (with a sensitivity of 73.44% and specificity of 66.47%). Conclusions The FWCQ exhibited strong reliability and validity in children with anorexia.

A Preliminary Study on the Sexual Development Assessment Scale for Adolescents (청소년 성발달 평가척도 개발을 위한 예비연구)

  • Ha, Eun-Hye;Yoo, Mee-Sook;Cho, You-Jin
    • Korean Journal of Child Studies
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    • v.26 no.1
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    • pp.279-297
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    • 2005
  • The purpose of this preliminary study was to test the validity and reliability Sexual Development Assessment Scale for Adolescents. Subjects were 579 middle school and 504 high school students in Seoul and Gyeonggido. Statistical analyses were by factor analyses, Cronbach's ${\alpha}$, $x^2$ value and Cramer's V. Construct validity was composed with 10 factors on sexual Development Assessment Scale for middle school students and 12 factors for high school students. Reliability of each subscale was high and the item discrimination, $x^2$ value and Cramer's V were also meaningful.

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A Study on Selecting Green Indexes of a Seaport

  • Pak, Ji-Yeong;Yeo, Gi-Tae;Coo, Byung-Mo
    • Journal of Navigation and Port Research
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    • v.33 no.9
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    • pp.653-657
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    • 2009
  • The aim of this study draws out the Green Index of a Seaport (GIS) that is comprehensive and coordinated approach to diminish the negative impacts of port operations using a Factor Analysis (FA) which can evaluate the level of cleanness of seaport. For this purpose, the questionnaires were sent to the experts and port stake holders, and received 75 out of 100. In this survey, Cronbach's alpha has the numerical value 0.76. Thus it means that this survey has internal consistency reliability. Overall, 15 components were selected from the literature review and five factors were extracted by factor analysis.

A Study for the Consumption Competencies According to the Shopping Value Types of College Students (대학생의 쇼핑가치유형 및 소비능력에 관한 연구)

  • Seo, In-Joo
    • Journal of Family Resource Management and Policy Review
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    • v.14 no.3
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    • pp.1-14
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    • 2010
  • The purpose of this study was (1) to investigate the changes in consumer competencies according to the types of shopping value, (2) to reveal the effects of shopping value on consumer competencies. The subjects of this study were 266 university students dwelling in Seoul. A questionnaire was used as the survey method. The data was analyzed by Cronbach's alpha, frequencies, percentile, mean, factor analysis, K-mean cluster analysis, t-test, ANOVA and Duncan's multiple range tests, multiple linear regressions. Computations were conducted by SPSS WIN 12.0. The study produced the following results. First, college students can be categorized into 3 shopping values by K-means Cluster analysis of 13 items: the hedonic shopper (shopping value), the utilitarian shopper (shopping value) and the balanced shopper (shopping value). Second, there were significant differences in grades, satisfaction with life and shopping value. That is, grade 3and utilitarian shopping value group had a higher level of consumer competency. Third, the variable that influenced consumer competency was the utilitarian shopping value, influencing consumer attitude and consumer skill. These results imply that consumers should be constantly educated and that there needs to be a campaign to promote utilitarian shopping value.

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